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  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.

The Kyoto Protocol Is in Effect! Around the World, 141 Countries Are Taking the First Steps to Decrease Greenhouse Gases!
News story originally written on February 16, 2005

One hundred and forty-one counties from around the world have agreed to reduce the amount of pollution they release into the air. This will help to slow the amount of global warming! The agreement that each country signed is called the Kyoto Protocol.

The types of air pollution that the countries are trying to reduce through this agreement are called greenhouse gases. These gases trap heat in our atmosphere. So, having more of them causes the planet to warm. People release greenhouse gases into the atmosphere in many ways. One big way is by burning fossil fuels to drive cars, power factories, and warm houses.

Not all countries of the world signed the Kyoto Protocol. Of the greenhouse gases released each year, the countries that signed the agreement cause about half of them. The country that makes the most greenhouse gases, the United States, did not agreed to sign the Kyoto Protocol. In 2001, President George W. Bush decided that the US would not participate. Large developing countries such as India, China, and Brazil are not required to make changes either.

Last modified February 16, 2005 by Lisa Gardiner.

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